3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); function f(&$foo) { var_dump($foo); $foo = "bob"; } f($x); var_dump($x);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0070.00718.55
8.3.50.0120.00521.02
8.3.40.0120.00318.71
8.3.30.0120.00420.34
8.3.20.0090.00018.48
8.3.10.0000.00821.01
8.3.00.0080.00023.67
8.2.180.0090.00916.62
8.2.170.0100.01022.96
8.2.160.0070.00720.35
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0030.00626.16
8.2.120.0070.00019.83
8.2.110.0030.00620.98
8.2.100.0080.00417.78
8.2.90.0040.00417.50
8.2.80.0040.00417.97
8.2.70.0050.00317.90
8.2.60.0050.00317.92
8.2.50.0040.00419.53
8.2.40.0000.00822.33
8.2.30.0050.00219.36
8.2.20.0070.00017.45
8.2.10.0050.00317.64
8.2.00.0060.00317.61
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0030.00921.02
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00917.09
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0040.00418.51
8.1.160.0000.00918.78
8.1.150.0080.00018.57
8.1.140.0040.00417.43
8.1.130.0060.00317.73
8.1.120.0000.00817.44
8.1.110.0000.00817.28
8.1.100.0000.00717.27
8.1.90.0040.00417.39
8.1.80.0040.00317.41
8.1.70.0040.00417.25
8.1.60.0040.00417.62
8.1.50.0040.00417.46
8.1.40.0040.00417.40
8.1.30.0000.00717.60
8.1.20.0030.00517.55
8.1.10.0040.00417.50
8.1.00.0000.00817.43
8.0.300.0000.00719.90
8.0.290.0070.00016.75
8.0.280.0030.00318.38
8.0.270.0000.00717.23
8.0.260.0000.00716.75
8.0.250.0000.00716.79
8.0.240.0080.00016.88
8.0.230.0000.00716.75
8.0.220.0000.00716.86
8.0.210.0040.00416.83
8.0.200.0000.00616.90
8.0.190.0070.00016.76
8.0.180.0000.00716.88
8.0.170.0080.00016.86
8.0.160.0000.00716.75
8.0.150.0000.00716.86
8.0.140.0030.00516.63
8.0.130.0000.00613.31
8.0.120.0040.00416.75
8.0.110.0040.00416.62
8.0.100.0000.00716.81
8.0.90.0000.00716.78
8.0.80.0040.01116.86
8.0.70.0040.00416.79
8.0.60.0030.00616.71
8.0.50.0040.00316.86
8.0.30.0100.00816.92
8.0.20.0140.00717.40
8.0.10.0040.00416.83
8.0.00.0090.00916.83
7.4.330.0050.00016.77
7.4.320.0000.00616.37
7.4.300.0030.00516.61
7.4.290.0080.00016.48
7.4.280.0030.00316.60
7.4.270.0070.00016.52
7.4.260.0030.00313.31
7.4.250.0040.00416.48
7.4.240.0000.00716.49
7.4.230.0040.00416.60
7.4.220.0150.00616.65
7.4.210.0060.01016.59
7.4.200.0030.00316.62
7.4.190.0030.00316.71
7.4.160.0080.00816.43
7.4.150.0070.01017.40
7.4.140.0130.00317.86
7.4.130.0080.01116.44
7.4.120.0080.01116.34
7.4.110.0250.00016.34
7.4.100.0030.01516.29
7.4.90.0090.00916.40
7.4.80.0100.00619.39
7.4.70.0180.00316.59
7.4.60.0060.01216.39
7.4.50.0030.00616.50
7.4.40.0130.00322.77
7.4.30.0090.00916.36
7.4.00.0060.01115.07
7.3.330.0060.00013.23
7.3.320.0030.00313.10
7.3.310.0000.00616.13
7.3.300.0030.00316.10
7.3.290.0030.01116.23
7.3.280.0050.01216.19
7.3.270.0100.01317.40
7.3.260.0100.00918.24
7.3.250.0120.00816.28
7.3.240.0000.01716.17
7.3.230.0060.01216.42
7.3.210.0070.01016.40
7.3.200.0140.00619.39
7.3.190.0130.00316.41
7.3.180.0120.00416.24
7.3.170.0070.01016.55
7.3.160.0030.01316.25
7.3.120.0070.00814.74
7.3.110.0020.01314.89
7.3.100.0100.00614.71
7.3.90.0000.00914.52
7.3.80.0080.00514.64
7.3.70.0070.00714.47
7.3.60.0060.00614.44
7.3.50.0030.01014.70
7.3.40.0000.01514.75
7.3.30.0060.00614.77
7.3.20.0040.00416.30
7.3.10.0090.00316.49
7.3.00.0000.00816.53
7.2.330.0090.00916.67
7.2.320.0030.01916.54
7.2.310.0070.01216.43
7.2.300.0000.01616.22
7.2.290.0080.00816.55
7.2.250.0030.01715.09
7.2.240.0030.01514.71
7.2.230.0070.01114.69
7.2.220.0110.00714.85
7.2.210.0040.00714.72
7.2.200.0030.00614.84
7.2.190.0100.00314.92
7.2.180.0060.00314.89
7.2.170.0080.00415.03
7.2.00.0030.00919.26
7.1.330.0110.00415.75
7.1.320.0120.00315.88
7.1.310.0120.00315.62
7.1.300.0030.00715.61
7.1.290.0040.00815.93
7.1.280.0070.00715.54
7.1.270.0030.00715.91
7.1.260.0060.00615.49
7.1.200.0040.00815.75
7.1.100.0060.00618.02
7.1.70.0030.00516.87
7.1.60.0130.01019.17
7.1.50.0070.00716.92
7.1.00.0030.04722.57
7.0.200.0040.00416.63
7.0.140.0170.06321.95
7.0.60.0100.07719.83
7.0.50.0030.08317.95
7.0.40.0070.09020.13
7.0.30.0600.07720.09
7.0.20.0200.05720.06
7.0.10.0300.07320.05
7.0.00.0200.05320.04
5.6.210.0070.08020.46
5.6.200.0100.06018.30
5.6.190.0000.05720.48
5.6.180.0330.08020.65
5.6.170.0500.05720.50
5.6.160.0100.04720.57
5.6.150.0130.05718.23
5.6.140.0030.08318.21
5.6.130.0030.04318.19
5.6.120.0100.08021.12
5.6.110.0200.07321.00
5.6.100.0170.07720.96
5.6.90.0030.09321.11
5.6.80.0000.04320.51
5.5.350.0300.05720.32
5.5.340.0000.05018.00
5.5.330.0100.03720.40
5.5.320.0230.06320.57
5.5.310.0100.04320.25
5.5.300.0100.07317.97
5.5.290.0070.07017.99
5.5.280.0000.08720.73
5.5.270.0200.06320.89
5.5.260.0100.08020.80
5.5.250.0030.07020.79
5.5.240.0030.04720.14
5.4.450.1630.03719.41
5.4.440.1530.04319.40
5.4.430.0030.03719.39
5.4.420.0030.04719.21
5.4.410.0770.07319.17
5.4.400.1600.04019.00
5.4.390.1570.03319.03
5.4.380.1630.04019.21
5.4.370.1730.04319.03
5.4.360.1730.04319.18
5.4.350.1500.04719.16
5.4.340.1800.03319.02
5.4.320.1630.03719.34
5.4.310.1770.04718.89
5.4.300.1500.03318.85
5.4.290.1700.04319.30
5.4.280.1630.04718.86
5.4.270.1630.03718.75
5.4.260.1770.04018.86
5.4.250.1700.04718.99
5.4.240.1670.04319.02
5.4.230.1500.04019.15
5.4.220.1470.03718.90
5.4.210.1670.04319.21
5.4.200.1700.03319.20
5.4.190.1730.04319.16
5.4.180.1730.04719.20
5.4.170.1730.04318.94
5.4.160.0300.06719.13
5.4.150.0030.07719.15
5.4.140.0070.07016.46
5.4.130.1170.04016.41
5.4.120.1800.03316.41
5.4.110.1500.03316.52
5.4.100.1700.04016.20
5.4.90.1470.05316.19
5.4.80.1700.04016.18
5.4.70.1630.04316.27
5.4.60.1630.04316.49
5.4.50.1570.04016.48
5.4.40.1700.03716.50
5.4.30.1670.04316.43
5.4.20.0130.06716.21
5.4.10.0000.04316.48
5.4.00.0900.06316.11
5.3.290.1670.04014.77
5.3.280.1600.03714.51
5.3.270.1630.05014.57
5.3.260.1500.03714.59
5.3.250.1800.04014.61
5.3.240.1770.04014.66
5.3.230.1470.04014.60
5.3.220.1730.04014.66
5.3.210.1730.04014.58
5.3.200.1700.04714.62
5.3.190.1630.03714.55
5.3.180.1830.03714.53
5.3.170.1830.03714.47
5.3.160.1500.04014.57
5.3.150.1600.03014.54
5.3.140.1530.03714.60
5.3.130.1570.03314.54
5.3.120.1530.03714.66
5.3.110.1870.03714.45
5.3.100.1830.03714.09
5.3.90.1770.04014.03
5.3.80.1800.04013.95
5.3.70.1670.04714.00
5.3.60.0900.05014.10
5.3.50.0000.03714.09
5.3.40.0100.03013.95
5.3.30.0030.07713.80
5.3.20.1670.03013.59
5.3.10.1530.04013.58
5.3.00.1600.03313.65
5.2.170.1470.03311.05
5.2.160.1430.03311.06
5.2.150.1300.03011.26
5.2.140.1130.03011.15
5.2.130.1370.03311.21
5.2.120.1370.02711.08
5.2.110.1330.03311.05
5.2.100.1370.02711.01
5.2.90.1370.02711.32
5.2.80.1300.02711.07
5.2.70.0000.03311.10
5.2.60.0070.03011.05
5.2.50.0000.03010.91
5.2.40.0870.03010.96
5.2.30.1230.02711.08
5.2.20.1100.02310.89
5.2.10.0970.03011.09
5.2.00.0930.03310.82
5.1.60.0900.01710.06
5.1.50.1030.0239.87
5.1.40.0900.0209.95
5.1.30.0730.02310.25
5.1.20.1000.02710.49
5.1.10.1030.02710.21
5.1.00.0870.0309.99
5.0.50.0530.0178.56
5.0.40.0470.0178.41
5.0.30.0670.0278.20
5.0.20.0430.0238.20
5.0.10.0570.0138.30
5.0.00.0470.0338.21
4.4.90.0430.0138.20
4.4.80.0130.0138.20
4.4.70.0030.0138.20
4.4.60.0000.0208.20
4.4.50.0030.0138.20
4.4.40.0030.0238.20
4.4.30.0030.0178.20
4.4.20.0000.0208.20
4.4.10.0030.0138.20
4.4.00.0600.0238.20
4.3.110.0530.0208.20
4.3.100.0500.0138.20
4.3.90.0430.0178.20
4.3.80.0400.0238.20
4.3.70.0570.0178.20
4.3.60.0330.0178.20
4.3.50.0500.0138.20
4.3.40.0500.0238.20
4.3.30.0270.0138.20
4.3.20.0330.0138.20
4.3.10.0300.0138.20
4.3.00.0130.0178.20

preferences:
51.85 ms | 400 KiB | 5 Q